deploy.sh

#!/bin/bash

# Store the filenames of previous build
PREVIOUS_BUILD=(./static/dist/*)

function fetch {
  echo "###### Fetching..."
  git pull origin prod
  git checkout prod
}

function build_client {
  echo "###### Building client..."
  npm install
  npm run build-client
}

function start_server {
  echo "###### Restarting the server..."
  pm2 stop app
  pm2 start ./start.sh --name "app"
  echo "###### Successfully finished deployment"
}

function clean_up_previous_build {
  echo "###### Cleaning up previous build"
  regex="([a-zA-Z_0-9]+)-([0-9a-z]+)\.(.*)"

  for file in "${PREVIOUS_BUILD[@]}"
  do
    if [[ $file =~ $regex ]]
    then
      filename="${BASH_REMATCH[1]}"
      hash="${BASH_REMATCH[2]}"
      ext="${BASH_REMATCH[3]}"

      if test -n "$(find ./static/dist -name "${filename}-[0-9a-z]*\.${ext}" ! -name "${filename}-${hash}*")"
      then
        # A newly generated file exists. Remove the old file.
        rm "${file}"
      fi
    fi
  done
}

function tag_release {
  echo "###### Tagging the new release"
  VERSION=`git describe --abbrev=0 --tags`
  VERSION_BITS=(${VERSION//./ })

  VNUM1=${VERSION_BITS[0]}
  VNUM2=${VERSION_BITS[1]}
  VNUM3=${VERSION_BITS[2]}
  VNUM3=$(($VNUM3+1))

  NEW_TAG="$VNUM1.$VNUM2.$VNUM3"

  echo "Updating $VERSION to $NEW_TAG"

  git tag $NEW_TAG
  git push --tags
}